I've had one good recruiter, one mediocre one, and many shit ones.

The good one got me a job that I stayed at for almost 27 years.

The mediocre one got me a job that I only stayed at for 18 months (it was a rather dysfunctional company). It wasn't really the recruiter's fault. I think they really thought that they had gotten me a good one.

The shitty ones were ones that I encountered, after leaving the 27-year job, and started looking for work.

Every single one, ghosted me, as soon as they found out that I was over 40. A couple were really quite rude.

In-company recruiters were better. They didn't ghost me, but the techies that got involved at the second interview did that.

After some of these, I just said "Bugger this for a lark," and gave up. I didn't need the work, and I certainly didn't need to be insulted, each time I tried looking.